BIOS Cardiovascular

Card Set Information

Author:
Anonymous
ID:
250021
Filename:
BIOS Cardiovascular
Updated:
2013-12-01 16:39:00
Tags:
BIOS Cardiovascular
Folders:

Description:
BIOS Cardiovascular
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. Arteries carry blood _____.
    away from the heart only  All arteries carry blood away from the heart.     
  2. Blood returns to the heart via the _____.
    pulmonary veins Pulmonary veins carry oxygenated blood from the lungs to the left atrium.
  3. From the pulmonary veins, blood flows to the _____.
    left atrium Blood enters the left atrium via the pulmonary veins.
  4. From the anterior vena cava, blood flows to the _____.
    right atrium Blood enters the right atrium from the anterior and posterior venae cavae.
  5. From the capillaries of the abdominal organs and hind limbs, blood flows to the _____.
    posterior vena cava Blood enters the posterior vena cava from the capillaries of the abdominal organs and hind limbs.
  6. Carbon dioxide enters the blood at the _____.   
    capillaries of the head, forelimbs, abdominal organs, and hind limbs In these capillaries oxygen diffuses into, and carbon dioxide diffuses out of, body tissues.      
  7. The _____ has(have) the thinnest walls.   
    capillaries.  The thin walls of the capillaries facilitate gas exchange.     
  8. Blood pressure is highest in the _____.   
    aorta. The aorta, which carries blood that has just left the left ventricle, has the highest blood pressure.
  9. What is the function of a circulatory system?   
    It brings a transport liquid into close contact with all cells in the body.  This transport liquid exchanges gases, nutrients, and wastes with the cells in the body.     
  10. Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?
    The large decrease in blood pressure as blood moves through the lungs may prevent efficient circulation through the rest of the body. The changes in blood pressure as blood moves through the lungs of land-dwelling vertebrates make it necessary to have separate circuits to the lungs and the rest of the body.      
  11. True or false? The circulatory systems of land-dwelling vertebrates are composed of two pumping circuits: the systemic circulation, which is a lower-pressure circuit to the lung, and the pulmonary circulation, which is a higher-pressure circuit to the rest of the body.   
    False The pulmonary circulation is the lower-pressure circuit to the lung, whereas the systemic circulation is the higher-pressure circuit to the rest of the body.
  12. What is the function of the left ventricle?   
    It pumps oxygenated blood around the body via the systemic circulation. The left ventricle receives oxygenated blood from the lungs and pumps it to the rest of the body.
  13. Which of the following statements about blood circulation in the body is true?   
    Valves prevent the backflow of blood into the atria and ventricles.   Valves are flaps of tissue that close when the ventricles contract to prevent the backflow of blood into the atria and also when the ventricles relax to prevent the backflow of blood from exiting vessels to the ventricles.    
  14. Which event occurs first during diastole?
    The atria and ventricles are relaxed, and blood flows into the atria. Diastole is the relaxation phase of the cardiac cycle during which the chambers of the heart are relaxed and blood can enter them passively.      
  15. Which event of the cardiac cycle occurs when systolic blood pressure is measured?   
    The ventricles contract, carrying blood into the aorta, and blood flows into the relaxed atria. The systolic blood pressure is the peak blood pressure, resulting from contraction of the ventricles.      
  16. Blood returns to the heart via the _____.
    pulmonary veins Pulmonary veins carry oxygenated blood from the lungs to the left atrium.
  17. From the pulmonary veins, blood flows to the _____.   
    left atrium. Blood enters the left atrium via the pulmonary veins.
  18. From the anterior vena cava, blood flows to the _____.   
    right atrium Blood enters the right atrium from the anterior and posterior venae cavae.
  19. From the capillaries of the abdominal organs and hind limbs, blood flows to the _____.   
    posterior vena cava Blood enters the posterior vena cava from the capillaries of the abdominal organs and hind limbs.
  20. Voice sounds are produced by the _____.   
    larynx The larynx houses the vocal cords.
  21. The primary functions of the _____ are to warm, filter, and humidify air.   
    nasal cavity The functions of the nasal cavity are to warm, filter, and humidify air.

What would you like to do?

Home > Flashcards > Print Preview